{
  "cveId": "CVE-2017-8493",
  "url": "https://patchblox.com/security/cve/CVE-2017-8493",
  "summary": "CVE-2017-8493 is fixed in 15 products on 1 platform, first by KB4022714, released June 13, 2017. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Windows Security Feature Bypass Vulnerability",
  "description": "\u003Cp\u003EA security feature bypass vulnerability exists when Microsoft Windows fails to enforce case sensitivity for certain variable checks, which could allow an attacker to set variables that are either read-only or require authentication.\u003C/p\u003E\n\u003Cp\u003ETo exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.\u003C/p\u003E\n\u003Cp\u003EThe security update addresses the vulnerability by correcting security feature behavior to enforce case sensitivity for certain variable checks.\u003C/p\u003E",
  "published": "2017-06-13T07:00:00Z",
  "severity": "Important",
  "cvss": 5.6,
  "epss": 0.0146,
  "epssPercentile": 0.73738,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-8493",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1511 for 32-bit Systems",
      "fixedVersion": "10586.962",
      "fix": "KB4022714",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022714",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1511 for x64-based Systems",
      "fixedVersion": "10586.962",
      "fix": "KB4022714",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022714",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for 32-bit Systems",
      "fixedVersion": "14393.1358",
      "fix": "KB4022715",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022715",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1607 for x64-based Systems",
      "fixedVersion": "14393.1358",
      "fix": "KB4022715",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022715",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for 32-bit Systems",
      "fixedVersion": "",
      "fix": "KB4022725",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022725",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 Version 1703 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB4022725",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022725",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for 32-bit Systems",
      "fixedVersion": "10240.17443",
      "fix": "KB4022727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022727",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 10 for x64-based Systems",
      "fixedVersion": "10240.17443",
      "fix": "KB4022727",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022727",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4022717",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022717",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for 32-bit systems",
      "fixedVersion": "",
      "fix": "KB4022726",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022726",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4022717",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022717",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 8.1 for x64-based systems",
      "fixedVersion": "",
      "fix": "KB4022726",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022726",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows RT 8.1",
      "fixedVersion": "",
      "fix": "KB4022726",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022726",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4022717",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022717",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2",
      "fixedVersion": "",
      "fix": "KB4022726",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022726",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4022717",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022717",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2012 R2 (Server Core installation)",
      "fixedVersion": "",
      "fix": "KB4022726",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022726",
      "released": "2017-06-13T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016",
      "fixedVersion": "14393.1358",
      "fix": "KB4022715",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022715",
      "released": "2017-06-13T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2016 (Server Core installation)",
      "fixedVersion": "14393.1358",
      "fix": "KB4022715",
      "url": "https://patchblox.com/security/fix/microsoft/kb4022715",
      "released": "2017-06-13T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}